Comprehensive side-by-side LLM comparison
Grok 4 Fast leads with 26.3% higher average benchmark score. Grok 4 Fast supports multimodal inputs. Overall, Grok 4 Fast is the stronger choice for coding tasks.
xAI
Grok 4 Fast is a multimodal language model developed by xAI. It achieves strong performance with an average score of 73.0% across 7 benchmarks. It excels particularly in SimpleQA (95.0%), HMMT 2025 (93.3%), AIME 2025 (92.0%). With a 2.0M token context window, it can handle extensive documents and complex multi-turn conversations. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents xAI's latest advancement in AI technology.
NVIDIA
Llama 3.3 Nemotron Super 49B was created through NVIDIA's optimization of Llama 3.3, designed to provide a balanced option with 49 billion parameters. Built to serve as a versatile mid-to-large-scale offering, it combines NVIDIA's customization expertise with Meta's foundation architecture.
5 months newer

Llama-3.3 Nemotron Super 49B v1
NVIDIA
2025-03-18

Grok 4 Fast
xAI
2025-08-28
Context window and performance specifications
Average performance across 2 common benchmarks

Grok 4 Fast

Llama-3.3 Nemotron Super 49B v1
Llama-3.3 Nemotron Super 49B v1
2023-12-31
Available providers and their performance metrics

Grok 4 Fast
xAI

Llama-3.3 Nemotron Super 49B v1

Grok 4 Fast

Llama-3.3 Nemotron Super 49B v1

Grok 4 Fast

Llama-3.3 Nemotron Super 49B v1